Add Azure Pipeline skill (#295985)

* add Azure Pipeline skill

* move script to typescript

* 💄

---------

Co-authored-by: João Moreno <22350+joaomoreno@users.noreply.github.com>

.github/skills/azure-pipelines/SKILL.md

@@ -0,0 +1,241 @@
+---
+name: azure-pipelines
+description: Use when validating Azure DevOps pipeline changes for the VS Code build. Covers queueing builds, checking build status, viewing logs, and iterating on pipeline YAML changes without waiting for full CI runs.
+---
+
+# Validating Azure Pipeline Changes
+
+When modifying Azure DevOps pipeline files (YAML files in `build/azure-pipelines/`), you can validate changes locally using the Azure CLI before committing. This avoids the slow feedback loop of pushing changes, waiting for CI, and checking results.
+
+## Prerequisites
+
+1. **Check if Azure CLI is installed**:
+   ```bash
+   az --version
+   ```
+
+   If not installed, install it:
+   ```bash
+   # macOS
+   brew install azure-cli
+
+   # Windows (PowerShell as Administrator)
+   winget install Microsoft.AzureCLI
+
+   # Linux (Debian/Ubuntu)
+   curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash
+   ```
+
+2. **Check if the DevOps extension is installed**:
+   ```bash
+   az extension show --name azure-devops
+   ```
+
+   If not installed, add it:
+   ```bash
+   az extension add --name azure-devops
+   ```
+
+3. **Authenticate**:
+   ```bash
+   az login
+   az devops configure --defaults organization=https://dev.azure.com/monacotools project=Monaco
+   ```
+
+## VS Code Main Build
+
+The main VS Code build pipeline:
+- **Organization**: `monacotools`
+- **Project**: `Monaco`
+- **Definition ID**: `111`
+- **URL**: https://dev.azure.com/monacotools/Monaco/_build?definitionId=111
+
+## VS Code Insider Scheduled Builds
+
+Two Insider builds run automatically on a scheduled basis:
+- **Morning build**: ~7:00 AM CET
+- **Evening build**: ~7:00 PM CET
+
+These scheduled builds use the same pipeline definition (`111`) but run on the `main` branch to produce Insider releases.
+
+---
+
+## Queueing a Build
+
+Use the [queue command](./azure-pipeline.ts) to queue a validation build:
+
+```bash
+# Queue a build on the current branch
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts queue
+
+# Queue with a specific source branch
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts queue --branch my-feature-branch
+
+# Queue with custom variables (e.g., to skip certain stages)
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts queue --variables "SKIP_TESTS=true"
+```
+
+> **Important**: Before queueing a new build, cancel any previous builds on the same branch that you no longer need. This frees up build agents and reduces resource waste:
+> ```bash
+> # Find the build ID from status, then cancel it
+> node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status
+> node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts cancel --build-id <id>
+> node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts queue
+> ```
+
+### Script Options
+
+| Option | Description |
+|--------|-------------|
+| `--branch <name>` | Source branch to build (default: current git branch) |
+| `--definition <id>` | Pipeline definition ID (default: 111) |
+| `--variables <vars>` | Pipeline variables in `KEY=value` format, space-separated |
+| `--dry-run` | Print the command without executing |
+
+---
+
+## Checking Build Status
+
+Use the [status command](./azure-pipeline.ts) to monitor a running build:
+
+```bash
+# Get status of the most recent build on your branch
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status
+
+# Get overview of a specific build by ID
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status --build-id 123456
+
+# Watch build status (refreshes every 30 seconds)
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status --watch
+
+# Watch with custom interval (60 seconds)
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status --watch 60
+```
+
+### Script Options
+
+| Option | Description |
+|--------|-------------|
+| `--build-id <id>` | Specific build ID (default: most recent on current branch) |
+| `--branch <name>` | Filter builds by branch name (shows last 20 builds for branch) |
+| `--reason <reason>` | Filter builds by reason: `manual`, `individualCI`, `batchedCI`, `schedule`, `pullRequest` |
+| `--definition <id>` | Pipeline definition ID (default: 111) |
+| `--watch [seconds]` | Continuously poll status until build completes (default: 30s) |
+| `--download-log <id>` | Download a specific log to /tmp |
+| `--download-artifact <name>` | Download artifact to /tmp |
+| `--json` | Output raw JSON for programmatic consumption |
+
+---
+
+## Cancelling a Build
+
+Use the [cancel command](./azure-pipeline.ts) to stop a running build:
+
+```bash
+# Cancel a build by ID (use status command to find IDs)
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts cancel --build-id 123456
+
+# Dry run (show what would be cancelled)
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts cancel --build-id 123456 --dry-run
+```
+
+### Script Options
+
+| Option | Description |
+|--------|-------------|
+| `--build-id <id>` | Build ID to cancel (required) |
+| `--definition <id>` | Pipeline definition ID (default: 111) |
+| `--dry-run` | Print what would be cancelled without executing |
+
+---
+
+## Common Workflows
+
+### 1. Quick Pipeline Validation
+
+```bash
+# Make your YAML changes, then:
+git add -A && git commit -m "test: pipeline changes"
+git push origin HEAD
+
+# Check for any previous builds on this branch and cancel if needed
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts cancel --build-id <id>  # if there's an active build
+
+# Queue and watch the new build
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts queue
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status --watch
+```
+
+### 2. Investigate a Build
+
+```bash
+# Get overview of a build (shows stages, artifacts, and log IDs)
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status --build-id 123456
+
+# Download a specific log for deeper inspection
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status --build-id 123456 --download-log 5
+
+# Download an artifact
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status --build-id 123456 --download-artifact unsigned_vscode_cli_win32_x64_cli
+```
+
+### 3. Test with Modified Variables
+
+```bash
+# Skip expensive stages during validation
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts queue --variables "VSCODE_BUILD_SKIP_INTEGRATION_TESTS=true"
+```
+
+### 4. Cancel a Running Build
+
+```bash
+# First, find the build ID
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status
+
+# Cancel a specific build by ID
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts cancel --build-id 123456
+
+# Dry run to see what would be cancelled
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts cancel --build-id 123456 --dry-run
+```
+
+### 5. Iterate on Pipeline Changes
+
+When iterating on pipeline YAML changes, always cancel obsolete builds before queueing new ones:
+
+```bash
+# Push new changes
+git add -A && git commit --amend --no-edit
+git push --force-with-lease origin HEAD
+
+# Find the outdated build ID and cancel it
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts cancel --build-id <id>
+
+# Queue a fresh build and monitor
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts queue
+node --experimental-strip-types .github/skills/azure-pipelines/azure-pipeline.ts status --watch
+```
+
+---
+
+## Troubleshooting
+
+### Authentication Issues
+```bash
+# Re-authenticate
+az logout
+az login
+
+# Check current account
+az account show
+```
+
+### Extension Not Found
+```bash
+az extension add --name azure-devops --upgrade
+```
+
+### Rate Limiting
+If you hit rate limits, add delays between API calls or use `--watch` with a longer interval.